124983109 has 2 divisors, whose sum is σ = 124983110. Its totient is φ = 124983108.

The previous prime is 124983043. The next prime is 124983119. The reversal of 124983109 is 901389421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101002500 + 23980609 = 10050^2 + 4897^2 .

It is an emirp because it is prime and its reverse (901389421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124983109 - 2¹⁵ = 124950341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124983119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62491554 + 62491555.

It is an arithmetic number, because the mean of its divisors is an integer number (62491555).

Almost surely, 2^124983109 is an apocalyptic number.

It is an amenable number.

124983109 is a deficient number, since it is larger than the sum of its proper divisors (1).

124983109 is an equidigital number, since it uses as much as digits as its factorization.

124983109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 124983109 is about 11179.5844734945. The cubic root of 124983109 is about 499.9774776522.

The spelling of 124983109 in words is "one hundred twenty-four million, nine hundred eighty-three thousand, one hundred nine".